2025年全球及中国液体异戊二烯橡胶（LIR）产业深度研究报告

Core Viewpoint - Liquid Isoprene Rubber (LIR) is a high-performance liquid rubber with applications in various industries, including wire and cable, automotive tires, and sealing components. The market for LIR is expected to expand as downstream industries grow and standards improve [1][3]. Group 1: Industry Overview - LIR is characterized by its environmental friendliness, good processability, excellent viscosity, wide temperature resistance, and long service life, making it suitable for applications in wire and cable, automotive tires, and sealing components [1]. - The main preparation methods for LIR include ionic polymerization, free radical polymerization, and coordination polymerization, with ionic polymerization being the most commonly used due to its high technical maturity and simple operation [1]. Group 2: Market Standards and Regulations - In November 2023, the Ministry of Industry and Information Technology of China approved the implementation of the industry standard "SH/T 1842-2023 Liquid Isoprene Rubber," which clarifies definitions, terminology, testing methods, inspection rules, and grade naming for LIR [1]. - The continuous improvement of industry standards is expected to enhance the market share of high-quality LIR in China [1]. Group 3: Market Participants and Development - Major global players in the LIR market include Kuraray and Zeon from Japan, while domestic producers in China include Masni Elastomers, Rongcan Bio, and Sinopec [3]. - The LIR industry in China is still in its early stages, facing challenges such as high technical barriers and production costs, which limit the number of market participants [3]. - Analysts predict that as market demand gradually releases, the development speed of China's LIR industry is expected to accelerate, necessitating increased R&D investment from local companies to enhance their technical capabilities and product quality [3].